U.S. patent number 10,794,087 [Application Number 15/453,314] was granted by the patent office on 2020-10-06 for door locking device, in particular an electromagnetic door locking device.
This patent grant is currently assigned to Kendrion Kuhnke Automation GmbH. The grantee listed for this patent is Kendrion Kuhnke Automation GmbH. Invention is credited to Wolfram Heisen, Borgar Pfeiffer, Bleik Teunis.
![](/patent/grant/10794087/US10794087-20201006-D00000.png)
![](/patent/grant/10794087/US10794087-20201006-D00001.png)
United States Patent |
10,794,087 |
Teunis , et al. |
October 6, 2020 |
Door locking device, in particular an electromagnetic door locking
device
Abstract
A door locking device, in particular an electromagnetic door
locking device, for a door with a rotary catch for a closing bolt
of the door, wherein in particular said rotary catch can be acted
upon or is acted upon in particular by a torque, wherein the rotary
catch has a closing bearing surface. The door locking device
includes a pivoting body, in particular a pivoting locking body,
and a lever body, wherein the pivoting body is connected to the
lever body by a connecting body, wherein the connecting body is
connected by a first joint to the pivoting body and by a second
joint to the lever body, wherein in a closed position of the rotary
catch the closing bearing surface of the rotary catch is in contact
or is able to be brought into contact with the first joint between
the pivoting body and the connecting body.
Inventors: |
Teunis; Bleik (Gettorf,
DE), Pfeiffer; Borgar (Schwentinental, DE),
Heisen; Wolfram (Lutjenburg, DE) |
Applicant: |
Name |
City |
State |
Country |
Type |
Kendrion Kuhnke Automation GmbH |
Malente |
N/A |
DE |
|
|
Assignee: |
Kendrion Kuhnke Automation GmbH
(Malente, DE)
|
Family
ID: |
1000005096216 |
Appl.
No.: |
15/453,314 |
Filed: |
March 8, 2017 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20180202191 A1 |
Jul 19, 2018 |
|
Foreign Application Priority Data
|
|
|
|
|
Jan 16, 2017 [EP] |
|
|
17151671 |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E05B
15/0086 (20130101); E05B 47/0001 (20130101); E05C
3/24 (20130101); E05B 47/0002 (20130101); E05B
2047/0069 (20130101) |
Current International
Class: |
E05B
15/00 (20060101); E05C 3/24 (20060101); E05B
47/00 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
4031077 |
|
Apr 1992 |
|
DE |
|
0300480 |
|
Jan 1989 |
|
EP |
|
0300840 |
|
Jan 1989 |
|
EP |
|
1489252 |
|
Dec 2004 |
|
EP |
|
Primary Examiner: Fulton; Kristina R
Assistant Examiner: Neubauer; Thomas L
Attorney, Agent or Firm: Rankin, Hill & Clark LLP
Claims
What is claimed is:
1. A door locking device for a door having a closing bolt, the door
locking device comprising: a rotary catch for the closing bolt of
the door; a pivoting body; a connecting body; and a lever body; and
wherein the rotary catch is configured to be acted upon by a
torque, wherein the rotary catch includes a recess with a closing
bearing surface, wherein the connecting body is connected by a
first joint to the pivoting body and by a second joint to the lever
body, wherein, in a closed position of the rotary catch, the
closing bearing surface of the recess of the rotary catch directly
contacts the first joint between the pivoting body and the
connecting body, and wherein, in an open position of the rotary
catch, the closing bearing surface of the recess of the rotary
catch does not directly contact the first joint between the
pivoting body and the connecting body.
2. The door locking device according to claim 1, wherein spacing
between a pivot axis of the pivoting body and a pivot point of the
first joint is smaller than a lever length of the lever body.
3. The door locking device according to claim 2, wherein spacing
between the pivot axis of the pivoting body and the pivot point of
the first joint is smaller than spacing between a pivot point of
the second joint between the connecting body and the lever body and
a rotational axis of the lever body.
4. The door locking device according to claim 1, wherein spacing
between a pivot axis of the pivoting body and a pivot point of the
first joint and spacing between pivot points of the first joint and
the second joint are not equal.
5. The door locking device according to claim 4, wherein the
pivoting body is configured as an internal link of a roller chain
and the connecting body is configured as an external link of a
roller chain, or wherein the pivoting body is configured as an
external link of a roller chain and the connecting body is
configured as an internal link of a roller chain.
6. The door locking device according to claim 1, wherein the
pivoting body and the connecting body are configured as roller
chain links.
7. The door locking device according to claim 1, wherein the lever
body and the connecting body are configured as a toggle lever
device.
8. The door locking device according to claim 7, wherein a lever
length of the lever body is greater than spacing between pivot
points of the first joint and the second joint on the connecting
body.
9. The door locking device according to claim 1, wherein, in the
closed position of the rotary catch, pivot points of the bearing
axis of the lever body and of the first and second joint on the
connecting body are aligned.
10. The door locking device according to claim 1, wherein in the
closed position of the rotary catch the lever body and/or the
connecting body bear against a supporting body.
11. The door locking device according to claim 10, wherein the
supporting body is in a housing of the door locking device.
12. The door locking device according to claim 1, wherein an arm
body is arranged on the lever body.
13. The door locking device according to claim 12, wherein the arm
body is a lever arm.
14. The door locking device according to claim 1, wherein an
actuating device is provided for moving the lever body.
15. The door locking device according to claim 14, wherein the
actuating device has an electric motor or an electromagnet.
16. The door locking device according to claim 14, wherein a
control device is provided for the actuating device.
17. The door locking device according to claim 1, wherein the door
locking device has a housing.
18. The door locking device according to claim 17, wherein a pivot
axis of the rotary catch and/or a pivot axis of the pivoting body
and/or a rotational axis of the lever body are mounted in or on the
housing.
Description
BACKGROUND OF INVENTION
Field of Invention
The invention relates to a door locking device, in particular an
electromagnetic door locking device, for a door or the like.
Brief Description of Related Art
It is known in the prior art that a rotary catch is used for
locking a door or flap or the like, in order to retain the door or
the flap in a locked position. The rotary catch in this case has a
recess which in the closed position receives a closing bolt or
closing clip during the closing movement of the door, wherein for
locking in a locked position the rotary catch is pivoted such that
the closing bolt or closing clip is blocked in the movement
thereof. In order to retain the rotary catch in the locked
position, a locking pawl or the like is provided in order to
prevent the pivoting of the rotary catch into the unlocked position
which releases the closing bolt or closing clip.
An electromagnetic door lock comprising a rotary catch is
disclosed, for example, in DE 40 31 077 A1.
Proceeding from this prior art, the object of the invention is to
provide a door lock which is of simple construction and
cost-effective, wherein in particular it is intended to be possible
to design the mechanism of the door lock such that a defined force
is able to be introduced into the housing of the door lock.
BRIEF SUMMARY OF THE INVENTION
This object is achieved by a door locking device, in particular an
electromagnetic door locking device, for a door with a rotary catch
for a closing bolt of the door, wherein in particular said rotary
catch can be acted upon or is acted upon in particular by a torque,
wherein the rotary catch has a closing bearing surface, with a
pivoting body, in particular a pivoting locking body, and with a
lever body, wherein the pivoting body is connected to the lever
body by means of a connecting body, wherein the connecting body is
connected by means of a first joint to the pivoting body and by
means of a second joint to the lever body, wherein in the closed
position of the rotary catch, the closing bearing surface of the
rotary catch is in contact or is able to be brought into contact
with the first joint between the pivoting body and the connecting
body.
The invention is based on the idea that the door locking device has
a locking mechanism, so that in the locked position the rotary
catch is prevented from rotating back into the unlocked position.
In this case, the locking mechanism has a pivotably mounted
pivoting body, in particular a pivoting locking body, a lever body
and a connecting body arranged between the pivoting body and the
lever body and connected to the pivoting body. In this case, the
pivot axis of the pivoting body and the rotational axis of the
lever body are arranged and aligned fixedly on, or in, a housing of
the door locking device.
By the rotation of the lever body, therefore, when a door is
closed, the pivoting body is moved from an unlocked position into a
closed position, wherein by means of the pivoting body, in
particular the pivoting locking body, the closing bearing surface
provided on the outer face of the rotary catch can be brought into
contact with the (first) joint between the pivoting body and the
connecting body, in the closed position. As a result, the rotary
catch can be supported on the pivoting body so that the force which
is exerted on the pivoting body is received by the housing. The
force acting on the pivoting body is moved by the torque of the
rotary catch, wherein this torque is produced, for example, by the
external action of force, for example a pulling force on the
closing piston or closing bolt. Moreover, a torque may also be
produced on the rotary catch by means of a corresponding spring
device, so that in the unlocked position the rotary catch is
retained or respectively arranged in this position. In particular,
the rotary catch has a recess with the closing bearing surface so
that in the closed position of the rotary catch the closing bearing
surface of the recess is in contact with the first joint between
the pivoting body and the connecting body.
Moreover, the door locking device is characterized in that the
spacing between the pivot axis of the pivoting body and the pivot
point of the first joint is smaller than the lever length of the
lever body, in particular is smaller than the spacing between the
pivot point of the second joint between the connecting body and the
lever body and the rotational axis of the lever body.
Moreover, in one advantageous embodiment of the door locking device
it is provided that the spacing between the pivot axis of the
pivoting body and the pivot point of the first joint and the
spacing between the pivot points of the first joint and the second
joint are equal.
Moreover, the pivoting body and the connecting body are
advantageously configured as roller chain links. To this end,
according to one embodiment of the door locking device it is
provided that the pivoting body is configured as an internal link
of a roller chain and the connecting body is configured as an
external link of a roller chain or that the pivoting body is
configured as an external link of a roller chain and the connecting
body is configured as an internal link of a roller chain.
Preferably, the lever body and the connecting body are configured
as a toggle lever device, wherein in particular the lever length of
the lever body is greater than the spacing between the pivot points
of the first joint and the second joint on the connecting body.
Moreover, in one development the door locking device is
characterized in that in the closed position of the rotary catch
the lever body and the connecting body are able to be arranged or
are arranged in an over-dead-center position.
Moreover, in the door locking device according to the invention, it
is provided that in the closed position of the rotary catch the
lever body and/or the connecting body bear against a supporting
body, preferably in a housing of the door locking device.
In particular, the door locking device has a housing, the rotary
catch, the pivoting body, the connecting body and the lever body
being arranged therein. To this end, the housing has an insertion
slot so that in the unlocked position a closing bolt or closing
clip is inserted into the slot and the jaw-shaped opening of the
rotary catch.
In order to move the lever body, an arm body, in particular a lever
arm, is advantageously arranged on the lever body. As a result, it
is possible to move or respectively to pivot the lever body by
actuating the arm body.
To this end, it is further provided that an actuating device is
provided for moving the lever body, wherein the actuating device is
preferably connected or operatively connected to the arm body
connected to the lever body.
In particular, the actuating device has an electric motor or a,
preferably bistable, electromagnet.
To this end, it is further provided that for specific control of
the movement of the lever body or respectively the pivoting body
connected thereto a control device is provided for the actuating
device.
According to one advantageous embodiment of the door locking
device, it is further provided that the door locking device has a
housing, wherein in particular the pivot axis of the rotary catch
and/or the pivot axis of the pivoting body and/or the rotational
axis of the lever body are mounted or arranged in or on the
housing.
Further features of the invention may be derived from the
description of embodiments according to the invention together with
the claims and the accompanying drawings. Embodiments according to
the invention may implement individual features or a combination of
a plurality of features.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described hereinafter without limiting the general
inventive idea by means of exemplary embodiments with reference to
the drawings, wherein with regard to all details according to the
invention which are not explained in more detail in the text,
reference is expressly made to the drawings, in which:
FIG. 1 shows schematically a section through a door locking device
in the closed state; and
FIG. 2 shows schematically a detail of the door locking device in
the unlocked state.
In the drawings, elements and/or parts which are the same or
similar are provided in each case with the same reference numerals,
so that in each case a further illustration is omitted.
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1 a longitudinal section through a door locking device 10
is shown schematically in the closed state. The door locking device
10 has a housing 12. The housing 12 in this case has a housing base
plate with a plurality of recesses for the arrangement of the
components of the door locking device. The housing 12 has an
insertion slot 14, for example a closing bolt 30 of a door or the
like being able to be inserted through said insertion slot and
being locked in the closed state.
In order to lock the closing bolt 30, a rotary catch 16 is
rotatably mounted in the housing 12, said rotary catch having a
jaw-shaped recess or opening 18 for receiving the closing bolt
30.
The rotary catch 16 is rotatably mounted by means of a bearing pin
20 in the housing 12, so that the rotary catch 16 can be moved
between the closed position (see FIG. 1) and the open position or
respectively unlocked position (see FIG. 2). The rotary catch 16
further has a recess with a closing bearing surface 17.
Moreover, a spring 22 is arranged in the housing 12, said spring
acting on the rotary catch 16, so that when the rotary catch 16 is
opened by means of the spring 22 the rotary catch 16 is
automatically rotated into the unlocked position (see FIG. 2).
In the locked position (see FIG. 1) one end of the rotary catch 16
is supported on a pivoting body 24. The pivoting body 24 is
pivotable about a bearing pin 26. The pivoting body 24 is connected
to a lever body 32 via a connecting body 28. In this case, the
pivoting body 24 is connected to the connecting body 28 by means of
a (first) joint 34. The connecting body 28 in turn is connected to
the lever body 32 via a second joint 36.
In order to rotate the lever body 32, said lever body is rotatably
mounted in the housing 12 by means of a bearing pin 38. The bearing
pin 26 for the pivoting body 24 and the bearing pin 38 for the
lever body 32 in this case are arranged on the housing 12.
Moreover, a lever arm 40 is arranged on the lever body 32. For
moving or respectively for actuating the lever arm 40 an
electromagnet 42 is provided with a moveable tappet, wherein the
tappet of the electromagnet 42 is brought into contact with the
lever arm 40. In one embodiment, the lever arm 40 is connected to
an electromagnet 42.
In the closed position of the rotary catch 16 (see FIG. 1) the
lever body 32 and the connecting body 28 are arranged in an
over-dead-center position (i.e., pivot points of the bearing axis
of the lever body and of the first and second joint on the
connecting body are aligned), wherein the lever body 32 in this
case is supported on a supporting body 44 of the housing 12. When
actuating the electromagnet 42 the lever arm 40 is forced away from
the electromagnet 42, so that the lever body 32 connected to the
lever arm 40 is rotated or respectively moved away from the
supporting body 44 and deflected so that the dead center point of
the toggle lever between the connecting body 28 and the lever body
32 is passed through, whereby the pivoting body 24 connected to the
connecting body 28 is moved away from the rotary catch 16 and, as a
result, the rotary catch 16 is opened (see FIG. 2). By the
deflection of the pivoting body 24, the closing bearing surface 17
of the rotary catch 16 no longer bears against the first joint 34,
whereby the rotary catch 16 is released.
According to the invention, in one embodiment the pivoting body 24
is configured as an internal link of a roller chain and the
connecting body 28 is configured as an external link of a roller
chain. Moreover, in one embodiment the spacing 62 of the pivot axis
26 from the rotational axis of the joint 34 is not equal to the
spacing 60 between the rotational axes of the joints 34, 36.
Moreover, the lever length 64 of the lever body 32, i.e. the
spacing between the pivot axis on the bearing pin 26 and the pivot
point or respectively the rotational axis of the second joint 36,
is greater than the spacing 60 between the rotational axes of the
joints 34, 36.
In the locked position or respectively in the closed position the
closing bearing surface 17 of the rotary catch 16 bears against the
first joint 34 between the pivoting body 24 and the connecting body
28. When the lever body 32 is moved from the closed position, the
bearing of the closing bearing surface 17 of the rotary catch 16 on
the joint 34 is released and the rotary catch 16 is released,
whereby the rotary catch 16 is rotated into the unlocked position
in which the closing bearing surface 17 of the rotary catch 16 does
not contact the first joint 34 between the pivoting body 24 and the
connecting body 28 (see FIG. 2). In the unlocked position, the
closing bolt 30 is released or received again for locking.
Moreover, a switch 46 with a control device (not shown here) is
arranged in the housing 12 (see FIG. 1), a sensor arm 48 being
pivotably arranged thereon. The pivoting body 24 bears with its
free end on the outer face of the rotary catch 16, wherein
depending on the rotary position of the rotary catch 16 it is
detected by means of the sensor arm 48 whether the rotary catch 16
is in the closed position or in the unlocked position.
In order to control the electromagnet 42, for opening the closed
position of the rotary catch 16 (see FIG. 1) a control signal is
emitted from the control device to the electromagnet 42, whereby
the lever arm 40 and the lever body 32 connected thereto are
rotated.
All of the cited features and the features to be derived only from
the drawings and also individual features, which are disclosed in
combination with other features, are regarded as essential to the
invention individually and in combination. Embodiments according to
the invention may be implemented by individual features or a
combination of a plurality of features. Within the scope of the
invention features which are identified by "in particular" or
"preferably" are to be understood as optional features.
LIST OF REFERENCE NUMERALS
10 door locking device
12 housing
14 insertion slot
16 rotary catch
17 closing bearing surface
18 jaw-shaped opening
20 bearing pin
22 spring
24 pivoting body
26 bearing pin
28 connecting body
30 closing bolt
32 lever body
34 first joint
36 second joint
38 bearing pin
40 lever arm
42 electromagnet
44 supporting body
46 switch
48 sensor arm
60 spacing between rotational axes of joints 34, 36
62 spacing between rotational axes of bearing pin 26 and joint
34
64 lever length
* * * * *